Dumping-car.



No. 793,885. PATENTED JUNE 27, 14905. A. MIEDEN.

DUMPING CAR.

APPLICATION FILED NOV. 10, 1904.

2 SHEETS-SHEET 1.

awww/hoz Adam il/'eden @V/buzones @13 No. 793,385. PATENTED JUNE 27,1905. A. MIEDBN.

DUMPING CAR.

APPLICATION FILED Nov.1o, 1904.

2 S 'IS-SHEET 2.

@www4/Veo@ @Wine/ow@ NITED STATES Patented June 27, 1905.

PATENT OFFICE.

DUIVIPING-CAR.

SPECIFICATION forming part of Letters Patent No. 793,385, dated June 27,1905.

Application filed November l0, 1904. Serial No. 232,180.

To n/ZZ whom, it may concern.-

Be it known that I, ADAM MIEDEN, a citizen of the United States,residing at Seattle, in the county of King and State of Washington, havein vented a new and useful Dum ping-Oar, of which the following' is aspecification.

The invention relates to improvements in d umping-cars.

The object of the present invention is to improve the construction ofdumping cars, carts, and the like havingatilting body and to provide oneof great strength and durability having simple and efficient means forautomatically unlocking the door of the car-body when the same is tiltedand for similarly locking the same when the tilting bodyis returned toits normal or horizontal position.

A further object of the invention is to provide locking` means whichwill have its unlocking operation facilitated by any pressure on theinner face of the door whereby the unlocking operation will be renderedeasy and the door prevented from sticking.

W'ith these and other objects in view the invention consistsin theconstruction and novel combination and arrangement of parts hereinafterfully described, illustrated in the accompanying drawings, and pointedout in the claims hereto appended, it being understood that variouschanges in the form, proportion, size, and minordetails of constructionwithin the scope of the claims may be resorted to without departing fromthe spirit or sacrificing any of the advantages of the invention.

In the drawings, Figure 1 is a perspective view of the dumping-carConstructed in accordance with this invention. Fig. 2 is alongitudinalsectional view of the same. Fig. 3 is a transverse sectional view on theline 5 5 of Fig. 2,. illustrating the construction of the combined guideand keeper for operating the weighted arm of the rock-shaft. l Fig. L isa detail horizontal sectional view illustrating the arrangement of theturn-table or the construction for supporting the combined guide andkeeper. Fig. 5 is a detail view of a portion of the front of the body,the portion of the car-body illustrating the arrangement of the catch.Fig. 6 is a detail view of the catch. Fig. 7 is a detailview ofthebeveled plate which is engaged by the catch.

Like numerals of reference designate correspending parts in all thefigures of the drawings.

l designates a tilting dumping-ear body, provided at its front with adoor 2, hinged at the top at 3 by any suitable means and adapted toswing outward, as clearly illustrated in Fig. -1 of the drawings, whenthe dumpingbody is tilted. The hinges of the door are preferablyprovided with a pintle-rod 4, which extends entirely across the car andwhich passes through suitable hinge members of the sides of the car-bodyand the door. The front edges of the sides of the car-body are inclined,and the door is arranged atan inclination when the car-body is in ahorizontal position, the inclination being sufficient to cause the doorto close automatically and quickly, so that it will return to its closedposition before the locking mechanism is operated, whereby the automaticlocking of the door will be rendered positive and reliable. The body isprovided at opposite sides with depending ears or bearings 5, and it ispivoted by pins 6 or other suitable fastening devices to a pair ofupwardly-extending arms 7 of a rotary frame or support 8. The rotaryframe or support 8, upon which the tilting body of the dumpingcar ismounted, is suitably secured to the movable member or ring 9 of thecentral bearing or turn-table of a car-truck frame 10, whereby the bodyof the car is adapted to be both rotated and tilted. By thisconstruction the car-body may be turned to discharge its contents ateither side or at the end of the car.

Although the locking mechanism hereinafter described is shown applied toa rotary and tilting car-body, yet it will be readily understood that itis applicable to dumping cars or carts having a simple and pivoted body.

The arms 7 are preferably formed integral with a transverse bar 11,through which passes a central pivot or king-bolt 12. The rotary supportor frame is also provided with apair of rearwardly-extending arms 13,angularly bent, as shown, and secured at their inner or front portionsto the turn-table and having their rear portions olfset from thetruck-frame and arranged at an elevation, as clearly shown in Fig. 1,for supporting a combined guide and keeper 14. The truck-frame, whichmay IOO be constructed in any desired manner, is composed of two sidesand the rear end piece of the sides being connected at the center of thetruck by transverse pieces 15 and by the top plate 16. Suitable blocksor pieces are secured to the upper and lower faces of the top plate 16for maintaining the central pivot or king-bolt in a perpendicularposition. The transverse pieces 15 and the top portion 16 maintain thetruck-frame perfectly true; but any other suitable form of bracing maybe employed. The axles 17 are detachably secured to the sides of the topframe by substantially U shaped bolts or rods having threaded ends andprovided with nuts. The sides of the U -shaped rods or bolts passthrough openings formed by plates 18, riveted or otherwise secured tothe inner faces of the sides of the top frame and bowed or bent at theirinner faces to provide grooves, as clearly shown in Fig. 2 of thedrawings. The flanged wheels 17L are arranged on the journals of theaxles to'enable the truck to run upon a track, as shown in Fig. 1 of thedrawings; but any other suitable form of truck or running-gear may beemployed.

The hinged door of the dumping-body is held in its closed position by acatch 19, consisting of a substantially V-shaped arm of a longitudinalrock-shaft 20,-which is journaled in front and rear bearings 21 and 22of the bottom ofthe car-body. The rock-shaft, which is arranged beneaththe car-bod y, extends substantially the entire length of the same andis provided at its rear end with a removable arm 23, which isautomatically operated by the combined guide and keeper 14, ashereinafter explained. The inner or lower portion of the V-shaped arm isarranged at an obtuse angle to the rock-shaft, and the upper or outerarm is arranged at an inclination and extends upwardly at an angle tothe door of the carbody, as clearly illustrated in Fig. 2. The door ofthe car-body is provided with a plate or member 24, which is beveleddownwardly and transversely toward its lower right-hand corner, forminginclined angularly-disposed faces, as clearly shown in Fig. 5 of thedrawings. The cooperating angular-ly disposed faces of the catch and theplate or member of the door facilitate the unlocking operation andenable the internal pressure on the door to rotate the rock-shaft, andthereby swing the catch downwardly away from the door when therock-shaft is free to rotate. This will greatly facilitate the operationof unlocking the door and will prevent the latter from sticking when theinner face of the door is subjected to great pressure.

The combined guide and keeper 14, which is disposed transversely of therear portion of the car, is secured to the rearwardly-extending arms 13,and it is curved longitudinally, presenting an upper concave face. It isprovided at the inner end with an arm or portion shaft is limited by acollar 26, having a set-r screw 27 and provided with a projectingportion or iiange 28, arranged to engage the body .to limit the movementof the weighted arm,

whereby the latter is held in an inclined position for enabling the saidweighted arm to be operated by the combined guide and keeper. When thecar-body is run back to a horizontal position, the downward movement ofthe rear end carries the weighted arm into engagement with the concaveupper face of the combined guide and keeper, which causes the arm toswing laterally into the space or opening between the upper portion ofthe stop 25 and the adjacent portion of the combined guide and keeper14. The weighted arm is provided at its end with an enlargement or head29, which is round and which facilitates the operation of thegravity-arm of the rock-shaft. The stop 25 prevents any movement of thegravity-arm through any vibration of the car. The hinged door closesbefore the gravity-arm engages the combined guide and keeper, and theoperation of the catch is thereby rendered positive and reliable.

The body is held against tilting and rotary movement by a substantiallyL-shaped footlatch 30, having vertical and horizontal portions pivotedat its angle by a pin 31 or other suitable fastening device and providedat its upwardly-extending arm with a beveled head 32, arranged to engagea depending plate or member 33. The plate or member 33, which isprovided at its top with an attachment- IOO liange, is secured to thelower face of the rear end of the car-body, and its lower portion, whichis curved transversely, is provided with a slot 34, which is adapted toreceive the projecting head 32 of the latch. The latch is held inengagement with the depending plate or member 33 by a spring 35, mountedin a suitable housing or casing 36, as clearly illustrated in Fig. 2 ofthe drawings. The horizontal portion of the latch is enlarged androughened to form a foot-plate and is adapted to be readily engaged bytne foot of the operator, whereby the upwardlyextending arm of the latchwill be swung'out of engagement with the plate or member 33. When thelatch is disengaged from the plate or member 33, the car-body may berotated to turn its front or discharging end in the desired direction,and it is also adapted to be readily tilted for discharging itscontents.

The rear end of the truck-frame is provided with a stop 37, consistingof a iiangearranged in the path of the depending plate or member 33 tolimit the downward movement of the rear end of the body. The ange of thesides of the truck-frame are beveled or cut away at 38, as clearly shownin Fig. 2, to permit the front portion of the body to swing downward thedesired distance and to provide a support for the same when dischargingits contents.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. In a device of the class described, the combination with adumping-body having a door, of a shaft provided with a catch'forengaging the door, said catch and door having coperating inclined faces,arranged to automatically rotate the shaft when the door is subjected'tointernal pressure, and the shaft is free to turn.

2. In a device of the class described, the cornbination of adumping-bodyhavinga door, the latter being provided with an inclined andangularly-disposed face, and a shaft having an arm supporting a catchand presenting an inclined face to the door and cooperating with theinclined and angularly disposed face thereof.

3. In a device of the class described, the combination with adumping-body having a door, of a plate or member mounted on the door andbe Velcd to form an inclined and angularl ydisposed face, and a sha'l` tprovid ed with a substantially V-shaped arm having its inner portiondisposed at an obtuse angle to the shaft, and its outer portion arrangedat an inclination and presenting an inclined face to the door when inengagement with the same, the inclined face of the catch cooperatingwith the inclined and angularly-disposed face of the said plate ormember.

4. Inadeviceoftheclass described,thecom bination with a tilting bodyhaving a door, of a rock-shaft provided with a catch for engaging thedoor, said rock-shaft being also provided with a gravity-arm forreleasing the door when the body is dumped, and means located in thepath of the gravity-arm for swinging the same to lock the door. y

5. In a device of the class described, the combination with a dumping-body having a door, of a rock-shaft provide'd with a catch forengaging the door and having a gravity-arm, and a guide arranged in thepath of the gravity-arm for swinging the same to lock the door.

6. In adevice ofthe class described, the combination with a dumping-bodyhaving a door, of a rock-shaft provided with a catch for engaging thedoor and having a gravity-arm',

and a transversely-disposed curved guide arranged in the path of thegravity-arm for actuating the sanne.

7. In adevice of the class described, the combination with adumping-body havingadoor, of a rock-shaft provided with a catch forengaging the door, and having a gravity-arm, and a guide arranged in thepath of the gravity -arm for actuating the same, said guide having anLipper portion forming a stop and arranged to engage the gravity-armwhen the dumping-body is in its normal position.

8. In a device of the class described, the combination of a dumping-bodyhaving a door, a rock-shaft extending substantially the entire length ofthe body and provided at its front end with a catch and having agravity-arm at its rear end for releasing the door, means located in thepath of the gravity-arm for operating the same to lock the door, and alatch for locking the dumping-body in its normal position.

9. In adevice of the class described, the combination of a dumping-bodyhaving a door, a rock-shaft provided with a catch for engaging the doorand having a gravity-arm, said gravity-arm being provided at its endwith a rounded head or enlargement, and a curved guidearranged in thepath of the arm in position to be engaged by the head or enlargement. r

l0. In a device of the class described, the combination of atruck, arotary frameor support having rearwardly-projecting arms, a dumping-bodymounted on the rotary frame or support and having a door, ashaft mountedon the body and provided with afcatch for engaging the door and having agravity-arm located adjacent to the said rearwardly-extending arms, anda guide supported by the rearwardly-extending arm and arranged in thepath of the gravity-arm.

11. In a device of the class described, the combination of a dumping-body having a door, a beveled plate carried bythe door, and a shaft havinga beveled catch cooperating with the beveled plate.

12. In a device of the class described, the combination with adumping-body having a door, of a shaft provided with a substantiallyV-shaped arm having its inner portion disposed at an obtuse angle to theshaft, and its outer portion arranged at an inclination and presentingan inclined face to the door when in engagement with the same.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

ADAM MIEDEN.

IOO

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